durso question

[Farrmanchu]

I have one bulkhead, and a noisy drain. My idea was to put a ball valve on the drain, so the pipe doesn't need to suck air. After discussing with my LFS, I decided not to, as a snail or something else clogging the ball valve would be a disaster. The Herbie method gets around that problem really well, and I'd love to try it. Wish I had known about this when I set-up, I would have installed two bulkheads!

[adidas]

cool ok i'll do the herbie method..sounds simple enough.. anyone got a gate valve?